Tool-holder.



u. v$8,424. ranma my I6, lm

n. c. nnpsnsnsen. f

. von; nomen. (u. .'d'r` (nlieim llld Apr. u, 1900) 'rari-ts sinon.

Toot-Homes.

l SPECIFCATKCN forming part of Letters .Pate-nt N o. 678,424, dated July16, 1901.

Application ille-a April 28,1900. sean no. 14,752. (No miel.)I

To all, w/tmn/ it may concern.:

Be it known that. I, MABERY CHAs. RODEN- BERGER, a citizen of the UnitedStates, residing at East St. Louis, in the county of St. Clair and Stateof Illinois, have invented a new and useful Tool-Holder, of which thefollowing is a specication.

This invention relates to tool-holders, and has for its object toprovide an improved device of this character wllieh is especiallydesigned for holding a cold-chisel or like inlplement used bystone-cutters for trimming ofi the surplus lead calking used in thejoints of granite monuments. When such implements are held in the hand,a portion of the latter intervenes between the stone and the implement,whereby the latter is inclined into the joint and makes an unfinishedcut. In view of this diiiiculty the essential object of the presentinvention is to provide a holder which will support the toolsubstantially parallel with` the stone, so that the calking may be cutstraight and smooth or flush with the outer side of the stone.

A further object is to provide improved means for adjusting theclamping-jaws f the device so as to firmly grip different sizes of toolsand to locate such means between the handles of the holder, so as to behoused and protected againstaceidental movement which might loosenthegrip of the de'ce.

Vith these and other objects in View thek present invention consists inthe combination and arrangement of parts, as will be hereinatten morefully described, shown in the accompanying drawings, and particularlypoint- -ed out in the appended claim, it being understood that changesin the form, proportion, size, and minor details may be made within thescope of the ela-im wjthout departing from the spirit or sacrificing anyof the advantages of the invention.v

In the drawings, 'Figure l is a perspective view of a tool-'holderconstructed in accordance with the present invention and applied to achisel. Fig. 2 is a longitudinal sectional view of the device.

Corresponding parts in both figures o the drawings are designated bylike characters of reference.

Referring to the accompanying drawings, l and 2 designate, respectively,tlie'opposite handles of the holder, which are provided at.

adjacent ends with the respective jaws 3 and 4, which are designed togrip the -tool 5, as best shown in Fig. 2 of the drawings. At oradjacent to the inner ends of the jaws the handles are provided with therespective inwardly-directed bearing-ears 6 and 7, which are hingedlyconnected by means of a pivotpin El', whereby an opening or separationof the handles produces a closing or clamping of the ja'ws upon thetool.

To conveniently adjust the jaws, so as to more firmly grip the tool,after the handle has been first engaged therewith, there is provided anadjusting thumb-screw 9, which projects inzopposite directions through ascrew-threaded opening 10, formed in one of the handles andadjacent toits rear or free end. The inner end of the screw is provided with acireularxed head or finger-piece 11, which is serrated or roughened uponits periphery to insure a tight grip thereon for the fingers 0f theoperator. As best indicatedin Fig. 2, it

will be seen that the shank ot the screw projects beyond the outer sideof the head, so as to form a stud or projection 12 for engagement withthe ad jacent inner side of the opposite handle member in order that thehead may be spaced away from said handle member to permit of the headbeing conveniently grasped for adjustment of the jaws.

1n the operation of the device the holder may be applied in any radialdirection to the tool, so that the latter may be brought close so as tobe substantially parallel therewith, whereby a straight cut flush withthe side of the monument may be made. It will be noted that the adjlisting-screw is housed between the handles of the device and alsowithin the vup to the side of the monument or other work,

hand of the operator, so as to be guarded against accidental adjustmentto loosen the grip of the jaws, and at the same time is in convenientposition for ready adjustment whenever required. Those portions of themembers which are opposite the jaws form handgrasps, so that they may beconveniently grasped by one hand to hold the member 1 tightly againstthe adj listing device, and thus prevent an accidental loosening of thejaws. It will be observed that the seats formed by the inner concavedfaces of the jaws have IOO lneu' outer extremities approximating theouter sides of the outer terminals of the jaws, whereby there is but asmall portion of the latter that lies between the chisel and the.monument or other work, and thus the incli- `nation of the chisel isreduced to the mini` mental-y jaws carried transversely at correspendingends of the handle members, the inner faces of the jaws havingcomplementary concaved seats extending for the entire lengths of thejaws and forming an approximate annulus when the jaws are closed, theouter terminal of each seat approximating the outer side of the outerterminal of the jaw, and an adjusting device for the handlemeinbers.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

MABERY CllAS. RODE'YBERGEII.

Witnesses:

JOHN NIEMES, E. W. EGGMAN.

